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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Comparative Experiments on Large Vocabulary Speech Recognition Schwartz, Richard; Anastasakos, Tasos; Kubala, Francis; Makhoul, John; Nguyen, Long; Zavaliagkos, George In: DTIC (1993) Abstract: This paper describes several key experiments in large vocabulary speech recognition. We demonstrate that, counter to our intuitions, given a fixed amount of training speech, the number of training speakers has little effect on the accuracy. We show how much speech is needed for speaker-independent (SI) recognition in order to achieve the same performance as speaker-dependent (SD) recognition. We demonstrate that, though the N-Best Paradigm works quite well up to vocabularies of 5,000 words, it begins to break down with 20,000 words and long sentences. We compare the performance of two feature preprocessing algorithms for microphone independence and we describe a new microphone adaptation algorithm based on selection among several codebook transformations. Keyword: *ADAPTATION; *MICROPHONES; *SPEECH; *SPEECH RECOGNITION; *VOCABULARY; *WORDS(LANGUAGE); ACCURACY; ALGORITHMS; Electrical and Electronic Equipment; ERRORS; Linguistics; PREPROCESSING; RATES; RECOGNITION; TEST AND EVALUATION; TRAINING; Voice Communications URL: http://www.dtic.mil/docs/citations/ADA460561 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA460561 BASE Hide details

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